Draw-works brace



June 10, 1930. J. c. RAINS DRAW WORKS BRACE Filed May 14. 1928 2 Sheets-Sheet l Jmcmm 1 (7 Wm June 10, 1930. J. c. RAINS DRAW WORKS BRACE Filed May 14, 1928 2 Sheets-Sheet 2 Patented June 10, 1930 UNITED STATES JOSHUA C. RAINS, OF HOUSTON, TEXAS,

PATENT OFFICE ASSIGNOR OF ONE-THIRD TO JOSEPH F. v BASHARA, F HARRIS COUNTY, TEXAS, AND ONE-THIRD TO AUBREY FARISS I DRAW-WORKS BRACE Application filed May 14,

This invention relates to new and useful improvements in a draw works brace.

One-object of the invention is to provide a device of the character described special ly designed for application to the draw works frame of well drilling apparatus, and effective to firmly secure the draw works in proper relation with respect to the drilling rig.

Another object of the invention is to provide a brace of the character described which is readily adjustableso that the supporting frame of the draw works may be readjusted to, and securely held in, its proper position, should said frame, for any reason, get

out of its proper alignment.

While the brace is shown and herein described as applicable to draw works it is capable of general use for any purposes to. which itmay be adapted. 7 With the above and other objects in view this invention'has particular relation to certain novel features of construction, opera tion and arrangement of parts an example of which is given in this specification and illustrated in the accompanying drawings, wherein V Figure 1 shows a fragmentary view of a drilling rig, showing the draw works, of said rig, secured in position by the improved type of brace.

Figure 2 shows a longitudinal sectional view of the brace as connected up in use.

Figure 3 shows a fragmentary side view of the brace. Figure 4 shows an edge view of one type of anchor employed, and

Figure 5 shows a sectional view of another type'of anchor employed.

Referring now more particularly to the drawings, wherein like numerals of reference designate similar parts in each of the figures the numeral 1 designates one of the end posts of the draw works frame, the end 0 posts of said frame being secured together by means of the cross beams 2, 2 which are aligned and bolted to opposite sides of the end posts 1. There is a derrick floor framing on which the draw works frame is mounted, and having cross sills as 3, and

' of said slots.

1928. Serial No. 277,577.

adjacent the derrick floor there is an engine Y base 4 having cross sills as 5.

The parts hereinbefore referred to are of conventional construction and form no part of the invention, the invention consisting in the type of brace presently to be described.

This brace is shown more in detail in Figures 2 and 3. The numeral 6 designates a sleeve, having its sides cut away to provide the long, relative wide side slots 7 7 with the bridges 8, 8 beyond the respective ends Said bridges 8, 8 have the axially tapped holes 9, 9 therethrough, through which the respective tension rods 10, 11 are threaded. The outer ends of these rods terminate in the respective hooks 12, 13. Fitted into the respective ends of the sleeve 6 there is the tubular sections 14, 15, the free end of the latter of which is externally threaded. The inner ends of these sections work against the corresponding bridges 8, with the antifriction bearings 16, 16 between them.

Fastened to the cross beams 2 are the respective anchors 17, 17, right angular in cross sectional contour, and each having the pairs of spaced lugs 18, 18. The upper end of the section 14 is bifurcated, forming the spaced fingers 19, 19, which fit between the lugs 18, of each pair and a pin 20 extends through aligned bearings of said lugs and fingers forming a connection between them and between said pairs of lugs this pin 20 is formed with a yoke 21 through which the corresponding hook 12 may be engaged. Fastened to each of the sills 3 and 5 there is an anchor, 22, right angular in cross sectional contour, and having the pairs of spaced lugs 23, 23. Threaded onto the section 15 there is a tubular end connection 24, whose outer end is bifurcated forming the spaced fingers 25, 25vwhich fit between the respective pairs of lugs 23 and are pinned therein by the pivot pins 26, 26. Between the pairs of pins 23 there is an eye bolt 27, which is anchored to the corresponding sill 3, or 5, as the case may be and through the eye of which the corresponding hook 13 is engaged.

The braces are applied, substantially as shown in Figure 1, and in practice there will be a plurality of such braces on each side or the draw works frame, working opposite each other to secure said frame in its propler place. Each brace may be adjusted to tie required length by turning the section 15, so

as to lengthen or shorten the brace to the desired length; I a y In. casethe vibration from the operation of the drilling rig, or other causes, results in the braces becoming loose, and the draw works frame gets out of its proper position, the sleeve 6 may. be turned in an appropriate direction to draw the rodslO, 11 to wards each other and so increase the tension be, secured in adjusted position by the lock nuts28, 29 which are; threaded thereon and bridges 8.

abut the inner sides of the corresponding While I have shown what I now consider the preferred form of the invention it is obvious that mechanical changes may be made therein and equivalents substituted for the parts shown and I reserve the right to make such changesand substitutions as may be found desirable within the scope of the appended claims.

lVhat'I claim is: Q

1. A connecting brace formed of tubular sections, one of which is. rotatable relative to the others, tension rods operatively-con nected to said rotatable section and extend ing through the other sec'tionsanchoring means at'the respective ends of said brace and anchoring means at the outer ends of said rods.

2. A tubular brace havingan interme- -diate rota'table section, means for connecting the ends of said brace to the respective parts to -be connected, tension rods whose inner ends are operatively connectedto said ro tatable section and whose outer ends are provided with anchoring means. v

8. A tubular brace having an intermediate rotatable 's'ection,anchoring means at the ends of said brace, tension rods, anchoring means at the outer ends of said rods, means connecting the inner ends of the rods to said rotatable section through which the rotation of said section is ell'ective to move said rods in opposite directions. w

4. Atubular brace having an intermediate rotatable section, anchoring means at the ends of said brace, tension rods, hooks at the outer ends of said rods, means connecting the inner ends of the rods to said rotatable section through which the rotation of said sec tion is effective to move said rods in opposite directions, said connecting means comprising oppositely pitched threads through which said respective rods are connected to;

said rotatable section.

' said rods.

6. A device of the character-described comprising a tubular brace, formed ofsecti'ons', anchoring means at the ends of said brace, one section of said brace being rotatable relative to the other sections, tension rods whose inner ends are connected to said rotatable section by; oppositely pitched threads and anchoring means atthe outerends of said rods.

- 7. A device of the character des'cril ed.

including a connecting brace, anchoring means at the ends of said brace, tensioni-ng means within associatedwith the respective outer ends of said respective tensioning means, and means connecting the inner ends of said tensioning means, effective to vary the tension thereof.

8.;A crevice of the character ends of, the brace, anchoring means-at the described comprising a' tubular connecting brace, tension means disposed substantially axially in;

said brace, means incorporated into the-brace and operatively connected-with said tension means and effective to vary the tension thereof and means at the ends of the device through which said brace and tensioning means may be attached to parts to be con-V nected by the brace. 1

9. A device of the character described comprising a tubular connectingbrace, tension means disposedsubstantially axially in said brace, means incorporated into the brace and operatively connected with said tension means and effective to vary the tension thereof and anchoring means atthe outer ends of the tension means and means at the ends of the device through which said brace and 'tensioning means'may beattached to parts to be connected by the brace.

In testimony whereof I name to thisspecification. 1 i

- JOSHUA C. RAINS. f

have signed myY 

